Axial limiting gas distribution unit structure for energy-saving utilization of high-temperature and high-pressure steam in power plant

Abstract

The utility model relates to the technical field of steam utilization, in particular to a power plant high-temperature and high-pressure steam energy-saving utilization axial limiting gas distribution unit structure which comprises a steam temporary storage assembly, a gas pressure balance bottle, a second branch pipe and a third branch pipe, and the steam temporary storage assembly comprises a storage tank, a fourth branch pipe and a first branch pipe. A third valve, a pneumatic ball valve and a second stop valve are sequentially installed between the fourth branch pipe and the storage tank, a connecting pipe is communicated between the fourth branch pipe and the first branch pipe, and a manual valve is fixedly installed on the surface of the first branch pipe. The steam temporary storage assembly, the three-way valve, the second valve, the filtering tank, the second branch pipe and the third branch pipe are arranged, so that the steam temporary storage device has the advantage of good distribution, the fourth branch pipe can be communicated with the first branch pipe through the connecting pipe, and the pneumatic ball valve is arranged to adjust the steam transmission flow; and the three-way valve and the second valve are matched to well communicate the filtering tank with the second branch pipe, so that the multi-position steam transmission requirement can be met.

Description

Technical Field

[0001] This utility model relates to the field of steam utilization technology, and in particular to the structure of an axial limiting gas distribution unit for energy-saving utilization of high-temperature and high-pressure steam in power plants. Background Technology

[0002] In power plants, steam power generation works by burning fuels (such as coal, oil, or natural gas) to produce high-temperature, high-pressure steam, which is then used to drive a turbine to rotate, thereby driving a generator to produce electricity.

[0003] In existing steam systems, it is often impossible to perform good gas distribution for high-temperature and high-pressure steam. The various components are directly connected by a single pipe, which greatly increases the cost of pipeline construction and use, and is not conducive to steam diffusion and transmission, thus posing certain limitations. In order to solve the above technical problems, we designed an axially limited gas distribution unit structure for energy-saving utilization of high-temperature and high-pressure steam in power plants. Utility Model Content

[0004] The purpose of this utility model is to provide an axial limiting gas distribution unit structure for energy-saving utilization of high-temperature and high-pressure steam in power plants. It has the advantage of good distribution and solves the problems of existing steam systems that cannot perform good gas distribution of high-temperature and high-pressure steam, and that the use of a single pipeline to directly connect the various components greatly increases the cost of pipeline construction and use, and is not conducive to steam diffusion and transmission.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an axially limited gas distribution unit structure for energy-saving utilization of high-temperature and high-pressure steam in power plants, comprising a steam temporary storage component, a pressure balance bottle, a second branch pipe, and a third branch pipe. The steam temporary storage component includes a storage tank, a fourth branch pipe, and a first branch pipe. A third valve, a pneumatic ball valve, and a second shut-off valve are sequentially installed between the fourth branch pipe and the storage tank. A connecting pipe connects the fourth branch pipe and the first branch pipe. A manual valve is fixedly installed on the surface of the first branch pipe. A first shut-off valve, a three-way valve, and a first valve are sequentially connected between the second branch pipe and the pressure balance bottle. A filter tank is connected between the third branch pipe and the three-way valve.

[0006] Preferably, the third valve, the pneumatic ball valve, and the second shut-off valve are arranged sequentially from left to right and connected by a pipeline.

[0007] Preferably, there are two connecting pipes, and the two connecting pipes are located on the left and right sides of the third valve, respectively.

[0008] Preferably, the end of the second shut-off valve away from the pneumatic ball valve is connected to the air inlet of the storage tank via a pipe.

[0009] Preferably, a second valve is connected between the first shut-off valve and the three-way valve via a pipeline, and the other end of the second valve is connected to the inner cavity of the filter tank via a pipeline.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This utility model, by setting up a steam temporary storage component, a three-way valve, a second valve, a filter tank, a second branch pipe, and a third branch pipe, has the advantage of good distribution. It can connect the fourth branch pipe to the first branch pipe using a connecting pipe, and is equipped with a pneumatic ball valve to regulate the steam transmission flow. The three-way valve and the second valve work together to connect the filter tank to the second branch pipe, which can meet the needs of multi-position steam transmission. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the steam storage component of this utility model.

[0014] In the diagram: 1. Steam storage assembly; 101. Storage tank; 102. Second shut-off valve; 103. Pneumatic ball valve; 104. Third valve; 105. Fourth branch pipe; 106. First branch pipe; 107. Manual valve; 108. Connecting pipe; 2. Pressure balance bottle; 3. First valve; 4. Three-way valve; 5. First shut-off valve; 6. Second valve; 7. Filter tank; 8. Second branch pipe; 9. Third branch pipe. Detailed Implementation

[0015] Please see Figures 1-2The high-temperature and high-pressure steam energy-saving utilization axial limiting gas distribution unit structure of the power plant includes a steam temporary storage component 1, a pressure balance bottle 2, a second branch pipe 8, and a third branch pipe 9. The steam temporary storage component 1 includes a storage tank 101, a fourth branch pipe 105, and a first branch pipe 106. A third valve 104, a pneumatic ball valve 103, and a second shut-off valve 102 are sequentially installed between the fourth branch pipe 105 and the storage tank 101. By setting the storage tank 101 and the second shut-off valve 102, excess steam can be temporarily stored in the storage tank 101 when the second shut-off valve 102 is open, avoiding excessive pressure increase in the pipeline of the steam system and affecting safety. A connecting pipe 108 connects the fourth branch pipe 105 and the first branch pipe 106. By setting the connecting pipe 108, the fourth branch pipe 105 and the first branch pipe 106 can be connected to meet the steam distribution and transmission requirements. A manual valve 107 is fixedly installed on the surface of the first branch pipe 106. A first shut-off valve 5, a three-way valve 4 and a first valve 3 are connected in sequence between the second branch pipe 8 and the pressure balance bottle 2. By setting the first valve 3 and the pressure balance bottle 2, the gas pre-stored in the pressure balance bottle 2 can be replenished when the first valve 3 is open, so as to avoid a large negative pressure in the steam system. A filter tank 7 is connected between the third branch pipe 9 and the three-way valve 4.

[0016] Please see Figure 2 The third valve 104, the pneumatic ball valve 103, and the second shut-off valve 102 are arranged from left to right and connected by a pipeline. By setting the pneumatic ball valve 103, it can be opened and closed flexibly with a fast response speed, and can be used to regulate the steam flow and cut off the steam transmission.

[0017] Please see Figure 2 There are two connecting pipes 108, and the two connecting pipes 108 are located on the left and right sides of the third valve 104 respectively;

[0018] Please see Figure 2 The end of the second shut-off valve 102 away from the pneumatic ball valve 103 is connected to the air inlet of the storage tank 101 through a pipe;

[0019] Please see Figure 1 A second valve 6 is connected to the first shut-off valve 5 and the three-way valve 4 via a pipeline. By setting the three-way valve 4, the first valve 3, the filter tank 7 and the first shut-off valve 5 can be connected to meet the requirements of steam medium transmission. The other end of the second valve 6 is connected to the inner cavity of the filter tank 7 via a pipeline. By setting the second valve 6, the first shut-off valve 5 and the filter tank 7 can be connected in conjunction with the pipeline.

[0020] When in use, all components are in the initial installation state. The steam flowing through the three-way valve 4 can be separated and transmitted to the first valve 3, the first shut-off valve 5 and the filter tank 7 to complete the multi-unit gas distribution. At the same time, with the assistance of the connecting pipe 108, the fourth branch pipe 105 and the first branch pipe 106 can also be connected to meet the steam transmission requirements.

[0021] In summary, the high-temperature and high-pressure steam energy-saving utilization axial limiting gas distribution unit structure of this power plant, by setting up steam temporary storage component 1, three-way valve 4, filter tank 7, second branch pipe 8 and third branch pipe 9, solves the problems of existing steam systems that cannot perform good gas distribution of high-temperature and high-pressure steam, and the direct connection between various components by a single pipe, which greatly increases the cost of pipeline construction and use, and is not conducive to steam diffusion and transmission.

Claims

1. A power plant high-temperature high-pressure steam energy-saving utilization axial limiting and distributing unit structure, comprising a steam temporary storage assembly (1), a gas pressure balance bottle (2), a second branch pipe (8) and a third branch pipe (9), characterized in that: The steam temporary storage assembly (1) comprises a storage tank (101), a fourth branch pipe (105) and a first branch pipe (106), the third valve (104), the pneumatic ball valve (103) and the second stop valve (102) are sequentially installed between the fourth branch pipe (105) and the storage tank (101), the connecting pipe (108) is communicated between the fourth branch pipe (105) and the first branch pipe (106), the surface of the first branch pipe (106) is fixedly installed with the manual valve (107), the first stop valve (5), the three-way valve (4) and the first valve (3) are sequentially communicated between the second branch pipe (8) and the gas pressure balance bottle (2), the filter tank (7) is communicated between the third branch pipe (9) and the three-way valve (4).

2. The axial position limiting and gas separating unit structure for high-temperature and high-pressure steam energy saving in power plants according to claim 1, characterized in that: The third valve (104), the pneumatic ball valve (103) and the second stop valve (102) are sequentially arranged from left to right and are communicated through pipelines.

3. The axial position limiting and gas distribution unit structure for high-temperature and high-pressure steam energy saving in power plants according to claim 1, characterized in that: The number of the connecting pipes (108) is two, and the two connecting pipes (108) are respectively located on the left and right sides of the third valve (104).

4. The axial position limiting and gas separating unit structure for high-temperature and high-pressure steam energy saving in power plants according to claim 1, characterized in that: The end, away from the pneumatic ball valve (103), of the second stop valve (102) is communicated with the gas inlet end of the storage tank (101) through a pipeline.

5. The axial position limiting and gas separating unit structure for high-temperature and high-pressure steam energy saving in power plants according to claim 1, characterized in that: The first stop valve (5) and the three-way valve (4) are communicated through the pipeline with the second valve (6), and the other end of the second valve (6) is communicated with the inner cavity of the filter tank (7) through a pipeline.

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